Siltstone-A

Austin Roys
Brady Weuve

Siltstone - Siltstone is a classtic rock.

Where it forms - On river beds from eroded rocks.

How does it form? - Forms from the erosion of preexisting rocks on river beds, the sediments pile up and and compress forming siltstone.

What is it made of? - Silica, calcite, and iron oxides.

Grain Size? - Fine

Grain Shape? - Angular

Uni from? - Yes

Non uni form? - No




Fossils? - Siltstone has been found with mega fossils and fossils from the Jurassic age.

Uses? - Siltstone is usually found in soil but it can be used for sculptures but not very often.




Sources -

http://wiki.answers.com/Q/How_does_siltstone_form

http://en.wikipedia.org/wiki/Siltstone

http://www.galleries.com/rocks/siltstone.htm

http://www.britannica.com/EBchecked/topic/544686/siltstone